Hmm. I don't know about this as a default view. I can see a lot of users wondering where their images are.

This one seems like it should fall under 'make it look the way I set it the last time I viewed it' like folding in the editor. That way, hopefully, if a user clicked one of the tabs they are at least aware of how to make the switch and wont get lost.

Still waiting for this, thought for sure it would be fixed in 4.0 but it wasn't. I call it a fix and not a change because it's a really bad implementation. I'd bet that 99% of users ad images to individual posts and almost never need/want to view everything in the media library first. It's slow and needlessly uses bandwidth.